MLA

Assefa, Yared, et al. Corn and Grain Sorghum Comparison. Academic Press, 2014.

APA

Assefa, Y., Roozeboom, K. L, Thompson, C., Roozeboom, K., Lingenfelser, J., Schlegel, A., & Stone, L. (2014). Corn and Grain Sorghum Comparison. Academic Press.

Chicago

Assefa, Yared, Kraig L Roozeboom, Curtis Thompson, Kraig Roozeboom, Jane Lingenfelser, Alan Schlegel, and Loyd Stone. Corn and Grain Sorghum Comparison. : Academic Press, 2014.